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Finding the Fourth Proportional to 11,568.05, 15,948.03 and 7,316.99

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Solution

The fourth proportional to 11,568.05, 15,948.03 and 7,316.99 is: 10,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.05 : 15,948.03 = 7,316.99 : x
  2. Step 2: Convert to fraction form
    11,568.05/15,948.03 = 7,316.99/x
  3. Step 3: Cross multiply
    11,568.05x = 15,948.03 × 7,316.99
  4. Step 4: Simplify right side
    11,568.05x = 116,691,576.03
  5. Step 5: Solve for x
    x = 116,691,576.03/11,568.05
  6. Step 6: Final answer
    x = 10,087.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.